平行的两根载流直导体，当通过的电流方向相反时，两导体将呈现出()
A.互相吸引
B.互相排斥
C.互不反应
参考答案：B
把下面的单词补充完整，并写出汉语意思。
1. cl__ __n ________________
2. sw__ __p ________________
3. w__ter ________________
4. __mpty ________________
5. c__ __k ________________
6. fl__ __r ________________
7. m__ __ls ________________
8. fl__ __er ________________
The Chinese lunar New Year usually ______ two records: the world’s most watched television gala show and its busiest telecommunications network.
A．develops
B．conducts
C．witnesses
D．launches
